Mathematics, 13.07.2019 15:00 KAMOO3X
Maya is showing her work in simplifying (5.2 β 4.5) β 5.5 + 4.8. identify any error in her work or reasoning. step 1: (5.2 β 4.5) β 5.5 + 4.8 step 2: 5.2 + (β 4.5 β 5.5) + 4.8 (identity property) step 3: 5.2 β 10 + 4.8 step 4: 5.2 + 4.8 β 10 (commutative property) step 5: 10 β 10 = 0 answers: she wrote identity instead of commutative in step 2. she wrote commutative instead of distributive in step 4. she wrote identity instead of associative in step 2. she wrote commutative instead of associative in step 4. will give brainliest if correct
Answers: 2
Mathematics, 21.06.2019 15:50
Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20
Answers: 2
Mathematics, 21.06.2019 16:30
You are remodeling your kitchen. youβve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles
Answers: 3
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Maya is showing her work in simplifying (5.2 β 4.5) β 5.5 + 4.8. identify any error in her work or r...
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